%% dx = (0.125,0.125)
solution = [
1 1.13315 1.28403 1.45499 1.64872 1.86825 2.117 2.39888 2.71828 
1.13278 1.2835 1.45434 1.64796 1.86739 2.11606 2.39786 2.71724 3.07922 
1.2807 1.45105 1.64415 1.86302 2.11108 2.39222 2.71085 3.07197 3.48129 
1.44235 1.63418 1.85165 2.09814 2.37751 2.69413 3.05298 3.4597 3.92071 
1.61515 1.82999 2.07352 2.34955 2.6624 3.01695 3.41879 3.87422 4.39042 
1.79517 2.03401 2.30472 2.61155 2.95927 3.35335 3.79996 4.30612 4.87977 
1.97712 2.24024 2.53845 2.87641 3.2594 3.69342 4.18528 4.74268 5.37436 
2.15447 2.44128 2.76629 3.13461 3.55197 4.02494 4.56089 5.16823 5.85645 
2.31978 2.62865 2.97865 3.37526 3.82467 4.33391 4.91097 5.56486 6.30581 
];
exact = [
1 1.13315 1.28403 1.45499 1.64872 1.86825 2.117 2.39888 2.71828 
1.13278 1.28361 1.45452 1.64819 1.86764 2.11631 2.3981 2.7174 3.07922 
1.2807 1.45122 1.64445 1.8634 2.11151 2.39266 2.71123 3.07223 3.48129 
1.44235 1.63439 1.85201 2.0986 2.37803 2.69466 3.05345 3.46001 3.92071 
1.61515 1.8302 2.07389 2.35002 2.66293 3.01749 3.41926 3.87453 4.39042 
1.79517 2.03419 2.30504 2.61195 2.95973 3.35381 3.80037 4.30638 4.87977 
1.97712 2.24036 2.53867 2.87669 3.25971 3.69374 4.18555 4.74285 5.37436 
2.15447 2.44133 2.76639 3.13473 3.55212 4.02507 4.56101 5.1683 5.85645 
2.31978 2.62865 2.97865 3.37526 3.82467 4.33391 4.91097 5.56486 6.30581 
];
err = [
0 0 -3.10862e-15 -1.46549e-14 1.42109e-13 5.10703e-14 -2.04281e-14 -2.03393e-13 0 
2.44249e-15 -0.00010321 -0.000173742 -0.00022179 -0.000250099 -0.000255993 -0.000230844 -0.000157068 0 
-4.17444e-14 -0.000173012 -0.00029508 -0.00037846 -0.000426456 -0.00043407 -0.000386847 -0.00025752 0 
4.55191e-14 -0.000210237 -0.000360466 -0.000463273 -0.000521675 -0.000529283 -0.000468919 -0.000309352 0 
-2.01617e-13 -0.000213161 -0.000366411 -0.000471397 -0.000530471 -0.000536981 -0.000474005 -0.00031132 0 
-1.04361e-14 -0.000182185 -0.000314314 -0.000404973 -0.000455334 -0.000459491 -0.000403533 -0.000263321 0 
2.19824e-14 -0.000123484 -0.00021555 -0.000278977 -0.00031323 -0.00031388 -0.000272003 -0.00017377 0 
-2.84217e-14 -5.26809e-05 -9.61133e-05 -0.000126277 -0.000141411 -0.000139047 -0.000115525 -6.76275e-05 0 
0 0 7.99361e-15 1.08358e-13 4.44089e-16 -1.00364e-13 2.84217e-14 0 0 
];
